Versioning

[bronter]

I'm currently working on upgrading the wpgu-native dependency. It's already clear that there will be breaking changes since a bunch of things were renamed, and continuing to rely on commit hashes as a crude versioning scheme would just get more confusing as time goes on, so I think it's time to start cutting versions. I think I'll label what is on main currently as 1.0.0, and then I'll tag new major versions every time either:

• wgpu-native tags a new major version
• Changes made for a new version of Zig are incompatible with previous versions (as will likely happen when I switch to 0.14)
• I refactor the project in some major way, for example there are currently a lot of things in global namespace that seem like they should really be members of structs, like ShaderModuleGetCompilationInfoCallback which should probably just be ShaderModule.GetCompilationInfoCallback.

The new wgpu-native version also adds a bunch of new targets that wgpu-native-zig could potentially support, so I think what I'll do is get the current targets working first, and then work on enabling more targets as soon as I can test them and verify that the build script works properly for them (and I'm still not sure what I'm gonna do for macOS/iOS since I have no way of testing those currently). I'm not exactly sure if I should tag the new targets as minor versions or patch versions, but I'm leaning towards minor versions since they change the build script API a bit.